The Quest begins...

Discussion in 'Injection Tech' started by Caver Dave, Jan 30, 2009.


  1. Caver Dave

    Caver Dave Farmall Cub

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    With a few minutes between daily tasks, thought I'd try my hand at altering the fuel tables. Appears I may need some assistance here...

    1) Ran 4/25 BLM against the Caverdave305.bin in aldltobin using 1227747 7 Wide. It appeared to lessen the fuel table #s in the bottom ranges, but are BAD jagged! I not grasping exactly how to do the "manual smoothing" to make the graphs points symetrical... :no:


    In TunerPro
    2) Disabled both VSS 24 and EGR 32 flags. This just eliminates the flags from being thrown, but doesn't "disable" them, correct?

    3) Tried to raise the "EGR Temp On" from it's set 91.80*C (197*F), but was unsuccessful. Is there a MAX temp it will take or is 197*F it?

    4) Not sure how/where to disable the VSS completely...

    Feel free to correct/critique! I'm down to 25 days to get it tuned enough for the trail and beginning to worry I might not make it!
     

    Attached Files:

  2. Bill USN-1

    Bill USN-1 Moderator Staff Member Moderator

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    Have you done the knock test? tap on block with key on
    I'm starting to think you have an ESC or knock sensor issue.
    You may want to check all the wires going to the ESC.
    ground
    power
    signal
     
  3. Caver Dave

    Caver Dave Farmall Cub

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    Yes, I'd tapped the block with a hammer (& and seen the knock counts) and tested the wires & voltages earlier, but will check both again tonight.

    However, wondering if I've mismatched the ESC & KS. I'm 100% sure the ESC came from '89 2500 5.7L donor (ESC #1605 2401), but can't say about the KS. The KS was busted on the 1st donor & not pulled. We kept most of the 2 systems segregated (5.7 mine/4.3 brothers) in buckets at the yard, but I/brother could have pulled it from his bucket.

    I checked both buckets last night for "spare" KS's, looking for another to ohm (mine is at 100Kohms) and didn't find another one. This lead me to wonder *IF* I had his 4.3L KS? :cornfused:

    Should bite the bullet and buy a new KS (NO time for the yards anytime soon) to match the 5.7L ESC?
     
  4. Bill USN-1

    Bill USN-1 Moderator Staff Member Moderator

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    The sensors should be the same.
    The ESC is what is tuned for each motor.
    But they will still interchange.
    It just means one may pick up more of a certain frequency/ping then another.
    Guys with race motors swap them all the time to reduce false knock from roller rockers and headers.

    But seeing no knock at all even at startup has me thinking you may have a problem with one of them.
    Can you swap with your brothers?
     
  5. Caver Dave

    Caver Dave Farmall Cub

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    So the KS is standard across them all and the ESC is what's "tuned" to the specific application?

    I can't find another KS in either bucket! That & no knocks at startup is what leads me to think maybe one of us grabbed the 4.3L KS from his bucket! Since I can't find the 5.7 "spares" (+ no time for the yards), was gonna grab an aftermarket replacement just to rule it out...
     
  6. Caver Dave

    Caver Dave Farmall Cub

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    Also, I forgot to mention the existing KS ohms out at 100K ohms. Thought I read some were that high, but most in the 10K ohm range?
     
  7. Bill USN-1

    Bill USN-1 Moderator Staff Member Moderator

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    Here's an application list from rock auto.
    I looked up a 1990 5.7 K1500.

    BUICK ROADMASTER (1992 - 1993)
    BUICK ROADMASTER ESTATE (1992 - 1993)
    BUICK ROADMASTER LIMITED (1992 - 1993)
    CADILLAC BROUGHAM (1990 - 1992)
    CADILLAC ESCALADE (1999 - 2000)
    CHEVROLET ASTRO (1985 - 1992)
    CHEVROLET BLAZER (1987 - 1994)
    CHEVROLET C10 PICKUP (1985 - 1986)
    CHEVROLET C1500 PICKUP (1988 - 1999)
    CHEVROLET C1500 SUBURBAN (1992 - 1999)
    CHEVROLET C20 PICKUP (1985 - 1986)
    CHEVROLET C2500 PICKUP (1988 - 2000)
    CHEVROLET C2500 SUBURBAN (1992 - 1999)
    CHEVROLET C3500 PICKUP (1988 - 2000)
    CHEVROLET CAPRICE (1991 - 1993)
    CHEVROLET CAPRICE CLASSIC (1991 - 1993)
    CHEVROLET CAPRICE CLASSIC LTZ (1991 - 1993)
    CHEVROLET EXPRESS 1500 (1996 - 2002)
    CHEVROLET EXPRESS 2500 (1996 - 2002)
    CHEVROLET EXPRESS 3500 (1996 - 2002)
    CHEVROLET K10 PICKUP (1985 - 1986)
    CHEVROLET K1500 PICKUP (1988 - 1999)
    CHEVROLET K1500 SUBURBAN (1992 - 1999)
    CHEVROLET K20 PICKUP 1985
    CHEVROLET K2500 PICKUP (1988 - 2000)
    CHEVROLET K2500 SUBURBAN (1992 - 1999)
    CHEVROLET K3500 PICKUP (1988 - 2000)
    CHEVROLET P30 VAN (1991 - 1999)
    CHEVROLET R10 PICKUP 1987
    CHEVROLET R10 SUBURBAN (1987 - 1988)
    CHEVROLET R1500 SUBURBAN (1989 - 1990)
    CHEVROLET R20 PICKUP (1987 - 1988)
    CHEVROLET R20 SUBURBAN (1987 - 1988)
    CHEVROLET R2500 PICKUP 1989
    CHEVROLET R2500 SUBURBAN (1989 - 1990)
    CHEVROLET R30 PICKUP (1987 - 1988)
    CHEVROLET R3500 PICKUP (1989 - 1991)
    CHEVROLET S10 BLAZER (1988 - 1993)
    CHEVROLET S10 PICKUP (1988 - 1992)
    CHEVROLET TAHOE (1995 - 2000)
    CHEVROLET V10 PICKUP 1987
    CHEVROLET V10 SUBURBAN (1987 - 1988)
    CHEVROLET V1500 SUBURBAN (1989 - 1990)
    CHEVROLET V20 PICKUP 1987
    CHEVROLET V20 SUBURBAN (1987 - 1988)
    CHEVROLET V2500 SUBURBAN (1989 - 1990)
    CHEVROLET V30 PICKUP (1987 - 1988)
    CHEVROLET V3500 PICKUP (1989 - 1991)
    GMC C1500 PICKUP (1985 - 1999)
    GMC C1500 PICKUP SIERRA (1989 - 1997)
    GMC C1500 PICKUP SIERRA XC (1989 - 1997)
    GMC C1500 SUBURBAN (1992 - 1999)
    GMC C2500 PICKUP (1985 - 2000)
    GMC C2500 PICKUP SIERRA (1989 - 1998)
    GMC C2500 PICKUP SIERRA XC (1989 - 1998)
    GMC C2500 SUBURBAN (1992 - 1999)
    GMC C3500 PICKUP (1988 - 2000)
    GMC C3500 PICKUP SIERRA (1989 - 1997)
    GMC C3500 PICKUP SIERRA XC (1989 - 1997)
    GMC K1500 PICKUP (1985 - 1999)
    GMC K1500 PICKUP SIERRA (1989 - 1998)
    GMC K1500 PICKUP SIERRA XC (1989 - 1998)
    GMC K1500 SUBURBAN (1992 - 1999)
    GMC K2500 PICKUP (1985 - 2000)
    GMC K2500 PICKUP SIERRA (1989 - 1997)
    GMC K2500 PICKUP SIERRA XC (1989 - 1997)
    GMC K2500 SUBURBAN (1992 - 1999)
    GMC K3500 PICKUP (1988 - 2000)
    GMC K3500 PICKUP SIERRA (1989 - 1997)
    GMC K3500 PICKUP SIERRA XC (1989 - 1997)
    GMC P3500 VAN (1991 - 1999)
    GMC R1500 PICKUP 1987
    GMC R1500 SUBURBAN (1987 - 1990)
    GMC R2500 PICKUP (1987 - 1989)
    GMC R2500 SUBURBAN (1987 - 1990)
    GMC R3500 PICKUP (1987 - 1991)
    GMC S15 JIMMY (1988 - 1992)
    GMC S15 PICKUP (1988 - 1990)
    GMC SAFARI (1985 - 1992)
    GMC SAFARI XT (1990 - 1992)
    GMC SAVANA 1500 (1996 - 2002)
    GMC SAVANA 2500 (1996 - 2002)
    GMC SAVANA 3500 (1996 - 2002)
    GMC SONOMA (1991 - 1992)
    GMC V1500 PICKUP 1987
    GMC V1500 SUBURBAN (1987 - 1990)
    GMC V2500 PICKUP 1987
    GMC V2500 SUBURBAN (1987 - 1990)
    GMC V3500 PICKUP (1987 - 1991)
    GMC YUKON (1992 - 1999)
    GMC YUKON DENALI (1999 - 2000)
    GMC YUKON SLE 1999
    GMC YUKON SLT 1999
    OLDSMOBILE BRAVADA (1991 - 1992)
    OLDSMOBILE CUSTOM CRUISER 1992
    PONTIAC FIREBIRD (1987 - 1988)
    PONTIAC FIREBIRD FORMULA 1989
    PONTIAC FIREBIRD TRANS AM (1987 - 1989)
    PONTIAC FIREBIRD TRANS AM GTA 1989

    Please refer to catalog for application details.
     
  8. Caver Dave

    Caver Dave Farmall Cub

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    As always THANKS Bill! :beer:

    Whilst searching, I found this:
    Since the KS I have measures 100K ohms, I get the distinct feeling I have the wrong part all together! I can grab the correct (10456126) KS for $29 locally today...
     
  9. Caver Dave

    Caver Dave Farmall Cub

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    OK, all the :censored: with no SA & no knocks appear to be squared away!

    I sent Master Bill a trio of datalogs and got back a preliminary tune. Unfortunately, it took me a 5 days to get the "new" chip burned and snail mailed from my burner buddy, so I missed a good (DRY) window to log this past weekend. :( It came with ALL the legs mangled, so I spent several hours last night gently working the legs with a host of small pliers and managed to get them fairly straight. Dropped it in the carrier, inserted into the ECM and viola! Since it was very late, I only fired it up for <30 seconds (+ 1 short throttle blip :D). Hopefully, the weather will break and can get in a couple logging runs this weekend.

    To facilitate a faster turn around between tunes (I'm way too impatient for a 5 day wait), I just pulled the trigger on a Burn2, 28pin ZIF, & single 27SF512 from Moates and some bulk chips from fleabay! :clap:

    Initially, I plan to drop the ZIF directly on the PCB (modified pinout) to accept both 2732A's *and* unmodified 27SF512's. This ECM can be swapped into the tuning fodder dejour (mine/brothers/others?), but will likely STAY in mine unless needed. If my brother decides to go this route also (like he wouldn't follow his older, wiser, & MUCH better looking ;) brothers lead?), we'll mod ALL the ECMs (4 between us) and keep a spare 2732 each in case we have to resort to junkyard/reman ECMs at some point.
     
  10. R290

    R290 High Wheeler

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    That is the only way to go as you can burn a chip in seconds, making adjustments takes time as you fiddle with it. A whole lot better then nuke'n the chip in the UV ghost buster box, you can erase it in seconds too. I keep a stock ECM in my trail spares that will work. One day I will get a stock chip burned once I'm 95% happy with my tune for the trail spare ECM.

    Right now I have a ALDLcable issue, and ALDLcables offer a 1 year warranty on there cable and free testing. Just pay for shipping. So I need get that done ASAP as I need to check/make some changes now that the warmer weather is here.
     
  11. Ethan B

    Ethan B Farmall Cub

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    You'll love being able to burn chips at home. I have the AutoProm. Does everything the Burn2 can PLUS emulation, but unfortunately, I haven't figured out how to get that to work.

    Should have gone with the Burn2 like you did, but I'm hoping one day I'll get the emulation to work!
     
  12. Caver Dave

    Caver Dave Farmall Cub

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    Thanks guys, I *knew* it was right way to go longterm, despite complaints from my (usually) barren wallet! While I haven't exactly "grasped" everything needed for doing the actual tuning (bin manipulation), I have have a pretty good grasp on the physical "hard-parts". Figured it will get used regularly... until I win the lotto and can stomach the EBL! :



    After making 3 (serial) ALDL cables, I couldn't imagine actually paying for one outside of a USB style... at least until after I've had a chance to "dissect" the USB ALDL cable I was given to see if it's DIY-able! :D
     
  13. Caver Dave

    Caver Dave Farmall Cub

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    Was able to fire up and run on the latest tune from Bill yesterday! Unfortunately, we've had 4" of rain in as many days, so no logs yet.

    It sounded MCUH better than previous OEM bins and once warmed up, smelled MUCH better! About 5-10 minutes in, it began to stumble off idle and won't stay running. :cornfused: Took me a few minutes to figure out it was out of gas! :whistling:

    Will report as soon as it dries out enough for a drive.
     
  14. Bill USN-1

    Bill USN-1 Moderator Staff Member Moderator

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    All weather vehicle....fair weather driver!

    At least you didn't have your wife fill the gas can with diesel and you spend the next month troubleshooting why your new FI system won't run right!!

    I've seen it all here.
     
  15. Caver Dave

    Caver Dave Farmall Cub

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    Nope! All weather vehicle & driver... fair weather (employer supplied) laptop!

    Yeah, I wouldn't know anything about wives filling vehicles with the WRONG fuel... "But honey, it CLEARLY reads on BOTH the cap & the filler door 'Diesel Fuel ONLY'!" :cornfused:
     
  16. Caver Dave

    Caver Dave Farmall Cub

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    Just wanted to keep everyone updated... near ZERO progress for the last 2 weeks! :(

    Between the rain, side biz and a severe poison oak infestation (don't ask), I haven't had the will to do anything on the Jeep. Fortunately, it looks like the steroids & soaking my legs have done some good (oozing has all but stopped & starting to scab). I used the time to run down some info & parts for steering/suspension tweaked that also needs to happen, so it wasn't a total waste.

    Last Sunday, I did make a short logging run, but had issues with an older laptop I was using. WinALDL would die, but think it may need to be run in compatibility mode? The BLM numbers looked MUCH better (averaged 122 instead of the usual 108) and "Seat-of-the-pants" confirmed the power is better, so Bill's definitely on the right track! (Not that anyone had doubts!) Unfortunately, the intermittent knock signal has resurfaced and despite what I think was pinging (VERY hard to hear with the wind whistling past), it registered NO knock counts. I'm hoping tonight/tomorrow to double check the timing, crawl underneath to confirm the KS is still tight in the block (appeared to be the cause last time), and check the connector (feels loose). I should be able to ring it out (resistance) between the ESC connector & ground to insure it's making good contact. I'll likely also R&R the sparkplugs since it had 1.5 tanks run thru it in mega-rich mode and are a "few":eek: years old just to eliminate any issues there.
     
  17. Caver Dave

    Caver Dave Farmall Cub

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    OK, checked just now and found the KS tight in the block, but measuring resistance from the ESC connector (dk. blue wire) back to the KS did NOT give the same results as directly at the KS... IOW,

    KS: red DVM to center/black to body = 100K ohms (apparently normal for my KS)
    From ESC plug: red DVM to dark blue/black to engine ground = 10M ohms
    EDIT: dark blue from ESC to KS connector = 1.1 ohm

    Does this merely account for additional resistance in the dark blue wire feeding the KS/block *OR* does it indicate an issue with either the wire or connection TO the KS?

    Just want to insure this isn't the cause of intermittant lack of knock counts... kinda imperative for further tuning :D
     
  18. Bill USN-1

    Bill USN-1 Moderator Staff Member Moderator

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    There should be no additional resistance in the wire that I know of.

    10M is an open connection or a reverse bias on a diode.

    Does the resistance change if you reverse the leads?
     
  19. Caver Dave

    Caver Dave Farmall Cub

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    After cleaning the KS plug & socket (yet again), I'm seeing 3.45M from the dark blue to engine ground regardless of the DVM leads.


    Crawled under neath to measure the KS... still at 100k ohms

    Measured the wire to KS again and am now getting 16M ohms! :confused::confused:

    Possessed maybe?

    This still has me wondering about the connecctor at the KS... not a very positive feel or connection IMO... will try to jumper the connector to KS and report back.
     
  20. Caver Dave

    Caver Dave Farmall Cub

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    OK, the connector *IS* shot... careful movement of the wite going into the plug had very erratic swings and occasional opens. Got it kinda tweked to stay connected at the moment and will repolace it ASAP!

    Thanks again Bill & Co. for hanging in this far! I'm almost at the point of being amused by the "little stuff"!
     

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